Family life and sex education.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005190:Family; D006266:Health Education; D006801:Humans; D010372:Pediatrics; D012572:School Health Services; D012736:Sex Education; D012955:Societies, Medical; D012959:Socioeconomic Factors; D014481:United States